It's better to earn real tokens, not fake ones as most of these ICO's are scams and they promise in any method to scam people. I joined so many Airdrops, bounties, but only 2 to 3 paid me and they were in less price. I wasted my time by promoting them on Social media sites.
I suggest you to discover much, but after all these also they don't pay anything for us.
At some point, you are correct, almost 80% of this ICO are just making the system of cryptocurrency into a redundancy mode, they are making a lies to every investor making them believe that their projects will succeed and can surpass the best performing coins in the market. Talking about giving up, my conscience cannot do that, as we are all working to make a living, if cryptocurrency existed for the purpose of making lives more easier, then we can make a living on it, the remaining 20% of real bounty projects should be focused on, i mean why give up if there are still a chance to make a profits and make a living in it. Do not give up, life does not end here